Pemanfaatan Indikator Alam Dalam Mewujudkan Pembelajaran Kimia Berwawasan Green Chemistry

2021

JPKim

Self Cite

This study aims to describe the feasibility of the student worksheet developed in improving critical, creative, collaborative, and communicative thinking skills of students on acid-base material by using natural product. The student worksheet developed refers to the project-based learning model, which is integrated to science, technology, engineering, and mathematics (STEM). Method of this study uses a 4-D model (define, design, develop and disseminate), which is limited only to the development stage, and limited trials are carried out to nine students at senior high school. The feasibility of student worksheet is viewed from three aspects, namely validity, practicality, and effectiveness. The validity is viewed from the results of content and construct validity. The results obtained on each criterion show that the percentage score of 92.95% and 91.15% on very good category. The student worksheet's practicality in terms of activity observation and student response for each component obtained a percentage score of 95.18% and 88.09% on very practical category. The student worksheet's effectiveness in terms of the completeness of student learning outcomes showed an increase in the average N-Gain score of 0.84 on very high category and declared effective. Thus, the feasibility of the developed student worksheet in terms of all aspects such as percentage of scores obtained ≥ 61% in the aspects of validity, practicality and N-gain ≥ 0.3 in the aspect of effectiveness. So, the developed students worksheet oriented to STEM with PjBL model on acid base matter by using natural product is feasible for use in the learning. Keywords: acid-base, PjBL, STEM, student worksheet

Section: Effectivenessmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Student worksheet oriented on science, technology, engineering, and mathematics (STEM) with PjBL model on acid base matter by using natural product

Khofifah

2021

JPKim

Self Cite

“…Prinsip nomor 7 tentang menggunakan bahan baku yang dapat diperbaharui dengan contoh aplikasi tanaman/bunga yang dapat ditanam kembali ketika habis dan tumbuhnya relatif cepat sehingga mampu digunakan sebagai indikator asam basa secara berkelanjutan. Bunga berwarna dalam penelitian diidentifikasi dan mampu untuk dimanfaatkan sebagai indikator asam basa antara lain bunga pacar air dan ruellia [25]. Prinsip nomor 12 tentang mencegah/mengurangi kecelakaan kerja dengan contoh aplikasi menggunakan pelarut/bahan kimia yang aman akan mengurangi terjadinya kecelakaan kerja.…”

Section: Kepraktisan Lkpdunclassified

Pengembangan Lembar Kerja Peserta Didik (Lkpd) Untuk Melatihkan Keterampilan Proses Sains Berwawasan Green Chemistry Pada Materi Asam Basa

Fitriya

2020

UJCEd

Self Cite

Penelitian ini bertujuan untuk mendeskripsikan kelayakan LKPD yang dikembangkan untuk melatihkanketerampilan proses sains berwawasan green chemistry pada materi asam basa. LKPD ini disusunberdasarkan komponen keterampilan proses sains, yang dilatihkan yaitu mengamati, membuat hipotesis,merencanaan penelitian, mengklasifikasi, menginterpretasi data dan menyusun kesimpulan. Prinsip greenchemistry pada penelitian ini dibatasi hanya 3 prinsip yaitu prinsip no.1 tentang mencegah/mengurangilimbah, no.7 penggunaan bahan baku yang dapat diperbaharui dan no.12 mencegah/mengurangiterjadinya kecelakaan kerja. Rancangan penelitian ini menggunakan model 4-D (define, design, developdan desseminate) namun, pada penelitian ini hanya dibatasi sampai tahap develop dan dilakukan ujiterbatas terhadap 12 peserta didik kelas XI IPA SMA Negeri 14 Surabaya. Kelayakan LKPD yangdibahas meliputi: 1) validitas yang ditinjau dari validitas isi dan validitas konstruk, 2) kepraktisan yangditinjau dari aktivitas peserta didik dan angket respon peserta didik, serta 3) keefektifan yang ditinjau darites keterampilan proses sains (pretest dan posttest). Hasil penelitian menunjukkan bahwa kelayakanLKPD ditinjau dari validitas isi dikatakan valid dengan persentase 80,36% dan validitas konstruk dalamkategori sangat valid dengan persentase rata-rata keseluruhan 83,89%. Kepraktisan yang ditinjau dariaktivitas peserta didik dan respon peserta didik memperoleh hasil yang sangat praktis dengan presentase90,28% dan 95,49%. Keefektifan yang ditinjau dari hasil tes keterampilan proses sains mendapatkan ngain score berkisar antara 0,66-0,88 dengan kategori sedang-tinggi sehingga pengembangan LKPDdikatakan layak untuk digunakan dalam pembelajaran.Kata kunci: Lembar Kerja Peserta Didik (LKPD), Keterampilan Proses Sains, dan Green Chemistry. AbstractThe aims of this study is describe developed worksheet to practice science process skills oriented greenchemistry on acid base material. This worksheet was arranged based on the components of scienceprocess skills, mainly; doing observation, making hypotheses, planning research, classifying data, andmaking conclutions. The principles of green chemistry in this study were limited to 3 principles such asnumber 1 about waste prevention, number 7 about using of renewable feedstocks, and number 12 aboutconditioning for accident prevention. The design of this study is used a 4-D (define, design, develop anddesseminate), however, this study is only limited to develop and conduct a limited test of 12 students ofclass XI IPA SMA 14 Surabaya. The feasibility of worksheet discussed includes: 1) validity in terms ofcontent validity and construct validity, 2) practicality in terms of student activities and studentquestionnaire responses, and 3) effectivity in terms of science process skills tests (pretest and posttest).The results showed that the feasibility of worksheet in terms of content validity was said to be valid with apercentage of 80.36% and construct validity was said to be very valid with an overall average percentageof 83.89%. Practicality in terms of student activities and student responses obtained very practical resultswith a percentage of 90.28% and 95.49%. The effectiveness in terms of the results of the science processskills test got n-gain score ranging from 0.66-0.88 on the medium-high category so that the developmentof worksheet is feasible use in learning.Key words: Student Worksheet, Science Process Skills, Green Chemistry

“…Students think that chemistry is too abstract because, in the learning process, chemistry is not related to the phenomena that exist in everyday life. In fact, chemistry is very close to a student's daily life (Mitarlis et al, 2018).…”

mentioning

confidence: 99%

“…All components in our life are chemical, so human life is never separated from chemistry. Therefore, chemistry learning can be designed by utilizing materials around students (Mitarlis et al, 2018).…”

mentioning

confidence: 99%

Student Worksheets with Scientific Literacy Oriented on Hydrolysis Matter by Utilizing Surrounding Materials as an Alternative Practicum in Pandemic Era

Putri

Journal of Educational Sciences

2021

Self Cite

Student worksheets are needed to support the learning process that improves student's scientific literacy ability. This study aims to determine the feasibility of student worksheets with science literacy oriented on hydrolysis matter by utilizing surrounding materials as an alternative practicum activity in pandemic era. Research design was used the 4-D model limited to the developing stage with nine students of senior High School as research subjects. The student worksheet's feasibility is viewed from three aspects: validity, practicality, and effectiveness. The student worksheets that developed is feasible if it gets ≥ 61% on the validity and practicality aspects and the N-gain is ≥ 0.3 for the effectiveness aspect. In the validity aspect, the score was 97.20% and 97.00% for the content and construct validity criteria, on very good category. Practicality is viewed from the student response questionnaire results that get an average percentage of 97% and it’s supported by the results of student’s activity observations that get an average percentage of 92.84% on very practical category. The effectiveness aspect in improving science literacy ability indicated by the N-gain score average of 0.88, which is in the high category. Thus the student worksheets developed is feasible for use in the learning process.